Commit graph

35 commits

Author SHA1 Message Date
Oliver Schmidt 47bf797864 Added support for form with multiple submit buttons.
Forms with multiple submit buttons are rather rare but nevertheless the most popular web page (www.google.com) contains one with the two submit buttons "Google Search" and "I'm Feeling Lucky". So we want to support that - incl. the usual feature to the interpret first button as default button used when the user presses the ENTER key.
2015-06-07 00:29:29 +02:00
Oliver Schmidt 1d934db654 Reduce overlap on "scroll".
When using the 'down' button on a certain number of lines curently displayed at the bottom of the screen is redisplayed at the top of the screen. Given our usually small screen size and often large pages requiring many 'down' operations the number 'four' seems too generous so lets reduce it to 'two'.
2015-06-05 17:27:08 +02:00
Oliver Schmidt c5103bf997 Removed some redundant redrawing. 2015-06-05 16:59:16 +02:00
Oliver Schmidt f6b315a17f Fixed history handling.
- The wraparound handling when using the history with the 'back' button is actually depending on history_last being unsigned (which is the default for cc65) so define it explicitly as unsigned to make it work on other targets too.
- As there's no 'forward' button it doesn't make sense to keep history entries after using them with the 'back' button. Clearing them on use on the other hand avoids an "infinite history".
2015-06-05 16:34:57 +02:00
Oliver Schmidt e6903e4e7e Recognize HTTPS.
Although we for sure don't support HTTPS we need to recognize it. Nowadays it has become pretty usual to redirect HTTP URLs to HTTPS URLs in order to force privacy (thanks, NSA !). So far our redirection handler didn't recognize an HTTPS URL as abslute URLs and therefore appended it to the curent URL. This led to an endless redirection loop. Now we recognize the HTTPS redirection and generate a minimal document on the fly to inform the user of (for us unrachable) the redirection target.

HTML links with HTTPS URLs are treated just like fragment-only links meaning that they get simply completely ignored.
2015-06-05 16:26:20 +02:00
Oliver Schmidt e93f9da7af Adjusted coding style. 2015-06-04 22:39:16 +02:00
Oliver Schmidt 448fa88ad8 Fixed handling of empty URLs.
The code to trim spaces from the end of the URL behaved undefined if the URL was empty. That scenario is far from hypothetic as i.e. pressing the 'back' button with no (more) entry in the history yields an empty URL.
2015-06-04 22:00:52 +02:00
Oliver Schmidt 8b0a7a697f Filter excessive newlines.
The way our HTML parser triggers newlines is a guess at best. On the other hand our screen estate is severely limited. Instead of trying to (further) improve the way we translate tags to newlines it seems more reasonable to simply never render more than two successive empty lines.
2015-06-04 21:14:37 +02:00
Oliver Schmidt cdd289a7ff Ignore fragment-only links.
We don't handle URLs with fragments exactly ;-) well - meaning we send the fragment part to the server and we don't display the document starting at the anchor tag. Instead of adding the missing capabilities and thus adding lots of code I instead opted to simply ignore fragment-only links. This approach is based on the practical knowledge that fragments are primarily used for intra-document navigation - and are as such fragment-only links. And as we ignore them anyway when displaying the document it's more ergonomic to not have those links in the first place.
2015-05-25 18:18:44 +02:00
Oliver Schmidt a94e7e63e2 Avoid compiler warnings. 2014-02-01 00:46:57 +01:00
Adam Dunkels b244f30480 Moved the ctk files from core/lib into core/lib/ and core/lib/libconio 2014-01-26 23:20:46 +01:00
Oliver Schmidt 1f4613383f Added more flexibility to webbrowser -> wget forwarding.
- Up to now the CTK program handler was necessary to start wget and forward the URL. Now alternatively the webbrowser uses the underlying OS to exec wget.

- Up to now windowed CTK was necessary to display the acknowledge dialog. Now alternatively the webbrowser displays the acknowledge text and buttons right in the webpage area.

- For now the targets 'win32' and 'c64' make use of the new capabilities.
2014-01-24 16:09:30 +01:00
Oliver Schmidt 49fb300aa0 Minor code style fix 2013-07-30 22:48:04 +02:00
Oliver Schmidt 3a486d3954 Merge pull request #159 from oliverschmidt/master
Added support for <input type='hidden'>.
2013-03-13 02:53:46 -07:00
Oliver Schmidt 66fa843389 Added support for <input type='hidden'>.
Hidden form fields are aded to the page attribute buffer like text form fields so there's no need for special treatment in formsubmit(). However they are not added as widgets to the window so there's no user interaction.
2013-03-13 10:50:11 +01:00
Robert Quattlebaum f145c17039 core/net/resolv: IPv6 and mDNS ("Bonjour") support. Major refactor.
This patch updates the DNS resolver to support IPv6 and introduces an
improved API for looking up DNS entries. This patch also adds optional
support for mDNS lookups and responses to the DNS resolver.

Here is a quick summary of the changes:

 * Added support for IPv6 lookups.
 * DNS queries now honor record expiration.
 * Added support for mDNS, compatible with "Bonjour".
 * Implemented a new lookup api, `resolv_lookup2()`, which provides
   more information about the state of the record(error, expired,
   looking-up, etc.).

About mDNS/Bonjour Support
--------------------------

This patch adds basic support for mDNS/Bonjour, which allows you to
refer to the name of a device instead of its IP address. This is
incredibly convenient for IPv6 addresses because they tend to be very
long and difficult to remember. It is especially important for
link-local IPv6 addresses, since not all programs support the '%'
notation for indicating a network interface (required on systems with
more than one network interface to disambiguate).

In other words, instead of typing in this:

 * `http://[fe80::58dc:d7ed:a644:628f%en1]/`

You can type this instead:

 * `http://contiki.local/`

Huge improvement, no?

The convenience extends beyond that: this mechanism can be used for
nodes to talk to each other based on their human-readable names instead
of their IPv6 addresses. So instead of a switch on
`aaaa::58dc:d7ed:a644:628f` triggering an actuator on
`aaaa::ed26:19c1:4bd2:f95b`, `light-switch.local` can trigger the
actuator on `living-room-lights.local`.

What you need to do to be able to look up `.local` names on your
workstation depends on a few factors:

 * Your machine needs to be able to send and receive multicast packets
   to and from the LoWPAN. You can do this easily with the Jackdaw
   firmware on an RZUSBStick. If you have a border router, you will need
   it to bridge the mDNS multicast packets across the border.

 * If you are using a Mac, you win. All Apple devices support mDNS
   lookups.

 * If you are using Windows, you can install Apple's Bonjour for Windows
   package. (This may be already installed on your machine if you have
   installed iTunes) After you install this you can easily do `.local`
   lookups.

 * If you are using a Unix machine, you can install Avahi.

The default hostname is set to `contiki.local.`. You can change the
hostname programmatically by calling `resolv_set_hostname()`. You can
change the default hostname by changing `CONTIKI_CONF_DEFAULT_HOSTNAME`.

You may disable mDNS support by setting `RESOLV_CONF_SUPPORTS_MDNS` to
`0`.

---------------------------------

core/net/resolv: `resolv_lookup2()` -> `resolv_lookup()`

Note that this patch should fix several `resolv_lookup()` bugs
that already existed. There were many cases where `resolv_lookup()`
was being called and the IP address ignored, but later code
assumed that the IP address had been fetched... ANYWAY, those
should be fixed now.

---------------------------------

examples/udp-ipv6: Updated client to use MDNS to lookup the server.

Also updated the Cooja regression test simulation.
2013-03-10 11:40:08 -07:00
Oliver Schmidt c7b8bac006 Reorganized web page attribute data handling.
- Up to now the web browser used several fixed size arrays to hold the various types attribute data of the web page. This turned out to be way to inflexible for any non-trivial web page. Therefore now all attribute data is stored in a single buffer one after the other as they arrive from the parser only occupying the memory actually needed. This allows for pages with many links with rather short URLs as well as pages with few link with long URLs as well as pages with several simple forms as well as pages with one form with many form inputs.

- Using the actual web page buffer to hold the text buffers of text entry fields was in general a cool idea but in reality it  is often necessary to enter text longer than the size of the text entry field. Therefore the text buffer is now stored in the new unified attribute data buffer.

- Splitting up the process of canonicalizing a link URL and actually navigating to the resulting URL allowed to get rid of the 'tmpurl' buffer used during form submit. Now the form action is canonicalized like a usual link, then the form input name/value pairs are written right into the 'url' buffer and afterwards the navigation is triggered.

- Support for the 'render states' was completely removed. The only actually supported render state was centered output. The new unified attribute buffer would have complicated enumerating all widgets added to the page in order to adjust their position. Therefore I decided to drop the whole feature as the <center> tag is barely used anymore and newer center attributes are to hard to parse.
2013-03-06 16:29:36 +01:00
Oliver Schmidt 4938877dd9 Lifted restrictions on accepted MIME type.
The "normal" web is moving forward quickly reducing the interoperability of the Contiki web browser to nearly zero. The Mobile Web fits the capabilities of the Contiki web browser much better. Modern smartphones don't need the Mobile Web anymore but there are large areas in world with rather low end mobile phones and limited mobile bandwidth where the Mobile Web will be necessary for quite some time.

From that perspective it is reasonable to increase the Contiki web browser's interoperability with the Mobie Web - namely WAP 2.0 aka XHTML MP. XHTML MP is delivered as MIME types 'application/vnd.wap.xhtml+xml' or 'application/xhtml+xml'. Therefore we (try to) parse the document if the MIME type contains the substring 'html' (which is true 'text/html' too).
2013-02-19 00:25:36 +01:00
Oliver Schmidt 15fb63ba9a Harmonized ststus texts and and added status on wrong MIME type. 2013-02-18 23:08:05 +01:00
Adam Dunkels 944537fccf Removed all old RCS tags in the Contiki source tree. Those RCS tags are not used any more, as we are now using git to manage the Contiki source tree 2012-10-26 15:54:49 +02:00
Nicholas J Humfrey efab964451 Converted u8_t to uint8_t and u16_t to uint16_t in the apps directory. 2012-02-21 08:33:25 -05:00
oliverschmidt 05f938e7c1 Converting the last screen line from ASCII to PETSCII as it was done up to now almost never makes sense. Either the conent to be converted is not the last screen line or the last screen line was already converted (and is incorrectly converted back). Therefore now only a partial line not already converted before gets converted. 2010-07-21 21:03:06 +00:00
nifi b54c6e673b Updated API for uiplib and resolv to use uip_ipaddr_t instead of uint16_t for compability with IPv6 2010-05-31 15:22:08 +00:00
oliverschmidt 340de209c7 Allow to build the webbrowser without history support - by setting WWW_CONF_HISTORY_SIZE to 0. 2010-02-13 10:39:57 +00:00
oliverschmidt dbfa1efdcf Allow to build the web browser without DNS support - like i.e. the email client and the IRC client. 2010-02-01 19:44:30 +00:00
adamdunkels 40003196ef #include ctk-textentry-cmdline.h, plus a bunch of whitespace removed 2009-02-25 08:52:27 +00:00
oliverschmidt 614fa668cd Removed SELFSTART_PROCESS as AUTOSTART_ENABLE generally serves that purpose - and AUTOSTART_ENABLE gets already set as required :-) 2008-02-08 22:48:28 +00:00
oliverschmidt 0a8f384a40 Allow to optionally (triggered with SELFSTART_PROCESS) self start the application. 2008-02-07 16:28:11 +00:00
oliverschmidt a5ab7ee5b7 Don't depend on program handler if building without wget support. 2007-12-15 21:56:23 +00:00
oliverschmidt e4a568c1fc Introduced WWW_CONF_WITH_WGET to make the "URL forwarding" to wget.prg optional (and minor formatting changes). 2007-11-30 16:09:40 +00:00
oliverschmidt de7b87868d Removed compiler warnings. 2007-11-18 01:24:39 +00:00
oliverschmidt acade90174 Removed inconsistent source formatting. 2006-10-06 21:39:45 +00:00
oliverschmidt e8ff2ba595 With the change to always position the cursor at the end of the exsisting text on entering the textentry field edit state it became necessary to avoid initializing textentry fields with blanks insteads of zeros.
Unfortunately I overlooked the dynamically created textentry fields for web forms. Changing their behaviour was a little more complicated as the length of the existing text was used to determine the size of the textentry field. Now this size is passed explicitly.
2006-10-06 21:14:28 +00:00
oliverschmidt 5bd04b9c0d Avoid compiler warnings. 2006-08-14 23:31:40 +00:00
adamdunkels c9e808d638 Import of the contiki-2.x development code from the SICS internal CVS server 2006-06-17 22:41:10 +00:00